As I later note, Wales gives roughly the same speech every where he goes. For clarity, I have combined quotes from several different instances of his talk here rather than just use quotes from the Stanford presentation. The original sources for the quotes are:

"The idea that a lot...": 1 (8:14)
"a community ... a dedicated...": 3 (47:12)
"I know all of them...": 2 (23:10)
"it's much like...": 2 (21:06)